… who can access the messages of trusted users due to the … untrusted users, we in this paper
propose two relay selection (… (AF) protocols based optimal relay selection (ie, DORS and …

… In contrast, from the curve of the BRS scheme, we can see that the secrecy rate of the best
relay selection in “N relays with a single userpair” scenario reduces as N increases, such …

… In this paper, the relay selection of two-way untrusted relays … at all other non-selected
relays. Particularly, we propose a … a two way AF HD relay network, where two users, A and B, …

… in a wireless powered-untrusted cooperative communication (WPUCC) … untrusted relays.
To minimize the energy consumption of the network, we propose a secure adaptive relay-based …

In this paper, a joint relay selection and power allocation (JRP) scheme is proposed to enhance
the physical layer security of a cooperative network, where a multiple antennas source …

… jamming (CJ), which exploits the cooperating users to transmit the artificial noise, is a … CJ
and relay selection [3]–[5]. Common to [1]–[5] is that all of them assume the relays are trusted, …

… untrusted relay channel, and proceed to investigate this question for two types of relay …
relay and the destination is noiseless, the optimal relaying scheme in this case is choosing …

… untrusted relay networks without the direct link. Furthermore, the ergodic secrecy rate was
examined in [10] by proposing a suboptimal user selection … based optimal relay selection …

… The maximum scheduling scheme is conventional user selection that maximizes the … at the
untrusted relay by selecting the user with the lowest channel gain of the relay links. For these …

… untrusted relays. • We investigate three cooperative TAS and relay selection schemes, ie,
the best-BS-random-relay … consisting of an untrusted relay required by users at far distances, …